Languages that have similar words for wind and window.

According to Etymonline the word window is derived from wind.
Also ventana (Spanish) is derived from ventus, meaning wind.
Latin fenestra derives from the root ΦΑΝ
My questions are.First question : does this root ΦΑΝ mean also wind?
and second : Are there other languages that use the word for wind to derive also the word for window?

I do not think portuguese janela derives from fenestra. I am not sure but maybe is a diminutive from janua, meaning door.I do not have an etymological dictionary of portuguese but I think it is eassy to confirm or to reject.

Slavic okno (= window) is from oko (= eye).
Originally okno was an oval hole between two beams.

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We call this (oval or round hole between two beams) in Greek «φινιστρίνι» (fini'strini n.) a loan word from Italian or Venetian. It's Jackspeak (navy slang) with its ancient name being «παραφωτίς» (părăpʰō'tīs f.)-->lit. side-lighter (usually a small opening fitted with grating). Again «παραφωτίς» (părăpʰō'tīs f.) ≠ «ἄνεμος» ('ănĕmŏs m.), «άνεμος» ('anemos m. in Modern Greek)-->wind.

I do not think portuguese janela derives from fenestra. I am not sure but maybe is a diminutive from janua, meaning door.I do not have an etymological dictionary of portuguese but I think it is eassy to confirm or to reject.

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Da Cunha's Dicionário etimológico da língua portuguesa confirms your explanation:
janela < do Latim vulgar *januella, dimin. de janua.
I could find fenestrado ("que tem janela") and fenestral, but given the dates in the same dictionary (resp. 1858, XIX), these look like reloans from Latin.

Is it accurate that the Russian word for window окно is a borrowing from Old Scandinavian vindr+auga ("eye towards the wind") which gives English window; while at the same time the Russian word for eye глаз is cognates with the Old Norse/Icelandic word for window gluggi? Or in other words, eye is window and window is eye?

Is it accurate that the Russian word for window окно is a borrowing from Old Scandinavian vindr+auga (eye of the wind) which gives English window; while at the same time the Russian word for eye глаз is cognates with the Old Norse/Icelandic word for window gluggi? Or in other words, eye is window and window is eye?

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No. Window is (as you quite correctly point out) from vindr+auga, but it does not mean "eye of the wind", it means "eye towards the wind", and "wind" here is a reference to the outside. Actually, the term originally referred to an overhead smoke vent (hole) in the roof. However, the word caught on, and is the main word in English, Norwegian (vindu), Danish (vindue), and in dialectal Swedish (vindu).

In Persian, an old word for window was baadgir (wind catcher). It is consisted of baad=wind (vata in Avestan) and gir (present form of greftan,to grab, to gear). However, it doesn't suggest any visibility through this window. In recent centuries, it is mostly used for wind-towers, a structure for ventilation.

Currently, the common word for window is panjere that is used at least since 11th century in its current form. However, it seems to be mostly related to visibility. It strangely looks like fenetre or finistre, and Greek parathura (mentioned by apmoy70). Is it just a coincidence? It's hard to think either Greek or Iranian had not a word for such a widespread ancient architectural element, in their own language, to borrow it from other languages.
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P.S. An architecture historian [Pirnia] once wrote (without reference) it comes from panj- an old Persian root for to cut and to put(?). It is probably from panjeh (paw) which comes from panj (five, fingers). As an architect, I don't think it is related to window, and Pirnia's work were more romantic rather than scientific.